Motor-driven shaver or hair clipper



Nov. 11, 1952 .1. w. HALTERMAN MOTOR-DRIVEN SHAVER OR HAIR CLIPPER 2 SHEETS-Sl-1EET 1 Filed Dec. 27, 1950 INVENTOR Jo]: :2 0. Ea Z Zerman BY M rim/LL ATTORNEYS Nov. 11, 1952 w, LTER N 2,617,183-

MOTOR-BRIVEN SHAVER OR HAIR CLIPPER Filed Dec. 27, 1950 2 SHEETS-SHEET 2 mvemon John ZDZJzfaZZerman I g wlmafi ATTORNEYS Patented Nov. 11, 1952 Miran as TATES PATENT orr es 1W0T0'Rfi RLIRIEN SHAVER 0R HAIR CLIPPER {John iwalialterman, Los-Angele s,:Galif.

"Applicationflecembe'r 27, 1950, Serial 'N.0.'2.62,851

This invention relates generally 1 to an electric motor. driven safety shaver or hair clipper ofthe This :application is a continuation, .as to all :common subject matter; of copending applica- LtiOn Serial No. :12,'360,:filed rMarch 1, .1948, on .Sh-aver-Clipper.

.A :maior object ,of :the. present invention is xto provide a "shaver, or hair clipper, ;;of :the 'Itype i136- :scribed, in which the pair of z'cooperatingrblades are readily removable *from the device :for the pin-"pose of replacement when worn.

Another important-object of this invention is facture and-before distributioneach;pair.of-co- .opera-ting blades in -a retaining clipgoneblade .be-

.ingfixed in the clip. and the. other: blade being r'eciprocable inbut non-removable'from the clip,

so that s-aid'clip and bladescare-.adapted tobe .mountedin the device .as a unit. In other .words,

when theblades-in .thedevice areworn; it is only necessary to. release and-remove :the clip and retained blades, and atoreinsert anotherclig-holdins new blades.

A {further object of the vvinventionis to 1 provide .a novel arrangementof elements for -properly locating the cooperating blades in Y the retaining .clip,1and to similarly locate the clip in-the retentionlhead assemblyof the device.

A still further object of the .instant.invention is .to construct the blade retaining clip, and the retention .head assembly,-so that upon insertion of the clip in the latter, efiectivexworking contactismaintained"between the blades, ,.yet without undue friction therebetween, wherebysaid blades-when relatively .reciprocateid-run cool, yet shave or clip'hair cleanly.

Still another'object of the inventionis to provide a shaver or hair clipper, as "above, wherein the blade retaining clip, and-the retentionhead assembly, are relatively simple instructors, and

"compact; the entire device being of relatively small size, light weight, and conveniently hand supported foruse. v

An additional object of'the invention is to-pro- *vide amotor driven shaver or hair'clipperwvhich is-designed-for ease and economyof'manufacture.

Still another object "of the inventionisto pro- .to initial1y.assembly-i. e. atthetimeof manu- {353' v-4wClaims. (Cl. 30-43) 52 I "vide: a practical and reliable motordrivens-shaver or hair -clipper,-and-one which willbe exceedingly efiective for thepurpose for which it is designed.

These objects are accomplished by means :61

such structureandrelative arrangement ofgparts as will fullyappear "by 1 a perusal oftthe following specification and claims.

In the drawings:

Fig. 1 is aperspective viewof the novelmotor driven shaver .or 'lhai'r clipper.

'Figi'z is a fragmentary end elevationrshowing the retention head assembly with, a bladeret'ain- .ing clip .in' place for use.

Fig. 3 is a fragmentary perspective view;sl1owing the retention. head assembly with.thefholddownhar. and blade .retainingolip removed.

'Fig. A is .an enlarged .fragmentary .rearaeleva- ,tionof the retentionhead assembly. 1

Fig. 5 is a perspective view .of..the.blade.retain- -ing clipas manufactured foruse, .but.detaehed from .the device.

Fig;.-6.1S an enlarged exploded view ofthe blade retaining clip, and hold-down bar.

.Fig. v'7 an enlarged fragmentary rsectional E-elevation-of the retention head assemblywand nb-lade retaining clip; the view being taken on .line 1--'I of Fig.2.

Referring now more particularly 7150 the characters 0f reference on the t drawings, 'the novel.

motor driven shaver or hair; gelipper conrpri'sesn relatively .small, conveniently xhandr-supported .case i, which may 136-301 i-suitable :materiah sush as plastic, .and which case I houses ran :electric :drive motor vinot ishown) :nf anysuitable 212M116, such? as I is convent-ionallyaused in .electrlc,;shayers.

in the :main body'thereofithe case l sis-gen- .gerallyrectaneularin crossgsection, heingrrnunded -:at the corner for convenience of handling ranch 3112.39 i'being. elongated, and SLEEitS'LHDDGPiEnd'EtB- rducing: in .configurationi to;a necksZzwhichzi-sffafll- 'width'i but narrow i'fnom front to back. i-he onsarentsupply cord-3 which energizes 'thereleetr ic drive motor entersthe-casei through its lower Fiend.

' .At the upper-cadet the neck *2 the same-i-s .formed with a fiat.elongated based which-extends .:.from side to sideof said neck; there-beingea forwardly projecting lip 5 -on the neck *vvhic'h increases the efiective width of said flatbasel.

'The neck '12 is formed "with a --central lon- .gitudinal slot 36, and anactuator pin l r'iroject s upwardly through such slot; the "pin being oscil- :lated at relatively-high speed in said slot,,-length- :wise thereof, from the electric drive motor Lin the case. The mechanism by means of which this is accomplished is conventional.

At the upper end of the neck 2, and including the flat elongated base 4, the device embodies a retention head assembly, indicated generally at 8, constructed as follows:

A distance rearwardly of the central longitudinal slot 6, the neck 2 is formed with a deep longitudinal groove 9 which extends from side to side of said neck, whereby to define an upstanding-retention or back wall It. The retention wall I is of a height such that its upper edge H is disposed above the flat elongated base 4.

A longitudinal hold-down bar l2, having the upper portion of its front edge rounded, as at |3, normally overlies the flat elongated base a I, with the rounded front edge |3 disposed rearwardly of the lip 5.

At its rear edge the longitudinal hold-down bar is formed integral with 3, depending attachment plate H which extends downwardly in'close matching but vertically adjustable relation into the deep longitudinal groove 9. The

attachment plate I4 is formed, at spaced points in the length thereof, with notches l5 which open to the lower edge of said plate; there being headed screws |6 extendingthrough the retention wall I0 and notches Hi, and being threaded into the neck 2. Upon tightening of the headed screws I6, the attachment plate It is effectively clamped in the deep longitudinal groove 9,

whereby to maintain the longitudinal holddown bar l2 in a selected position of vertical adjustment.

The numeral. indicates generally a longitudinal, blade retaining clip which-when the device is in useis'engaged between the flat elongated base 4 and the hold-down bar I2, as clearly shown in Figs. 1, 2, and 7.

The longitudinal blade'retaining clip l1 and the blades therein, as shown in detail in Figs. 5 and 6, are constructed and assembled as follows:

'The clip comprises a flat, top wear plate I 8 and'a flat, bottom wear plate l9 which extend longitudinally in adjacent but spaced parallel relation; said wear plates |8and l9 being connected, at their rear edges, by an integral web 20. the plates, as so connected, being resilient relative to each other.

A'pair of thin flat blades'are disposed in face to face engagement and are confined in the clip 11 between and in close relation to the wear plates l8 and I9; said blades being indicated at 2| and 22. The blades 2| and 22 are rectangular in plan and elongated, matching each other in plan, andare of a width such that they project, at their forward edge portions, some distance ahead of the corresponding edges of the wear plates l8 and I9. At their forward edge portions the blades 2| and 22 are formed with rows of cutter teeth, indicated at 23 and 24, respectively. The rows 23 and 24 of cutter teeth are flat and in close matching relation von their inner or adjacent faces; the outer blade 2| includes a central, circular opening 26 which receives the upper end of the actuator pin 1 with a matching fit.

With this arrangement the actuator pin 1, projecting through the slots 6 and 25 and engaging in the opening 26, oscillates the upper blade 2| lengthwise and at relatively high speed, whereupon the row of cutter teeth 23 cooperates with the row of cutter teeth 24 to produce the desired cutting or shearing action for shaving or hair clipping; said cooperating rows of cutter teeth projecting ahead of the lip 5 for close engagement with the flesh.

The reciprocating blade 2| and the stationary blade 22 are properly located in the retaining clip H, with the blade 2| guided for reciprocating motion, in the following manner:

The blades 2| and 22 are formed, at each end, with rectangular end notches 21 and 28, respectively; said notches registering, except that the notches 2'| are ofv greater length.

At each'end thereof the top wear plate |8.is formed with a pair of longitudinal, transversely spaced, depending blade locating flanges 29 which engage downwardly through the corresponding notches 21 and 28 of the blades 2| and 22, efiectively locating said blades in the clip However, as the notches 21 are elongated and of greater length than the depending blade locating flanges 29, the blade 2| may reciprocate while remaining properly located by such flanges.

When assembling the clip and blades as a unit at the factory, the plates |8 and |9 are initially disposed at an angle suflicient to enable the blade'notches to he slipped over the flanges 29 so as to locate the blades in the clip, and said clip is then placed in a press to force the plates together to properly position them relative to the blades and to each other.

The material from which the clip is made is a metal having suflicient rigidity and strength to resist spreading and deformity when once the clip plates are pressed together, so that the blades disposed between the plates are non-removable relative to the clip for all practical purposes.

The bottom wear plate I9 is formed at each end with a pair of longitudinal, transversely spaced, depending clip locating flanges 30 which removably seat in rectangular end notches 3| formed in the base 4. With the pairs of flanges 30 seating in the notches 3|, the clip I1 is located on the base 4 in proper relation to the actuator pin 1, and with the rear edge of said clip abutting against the depending attachment plate M; the hold-down bar 2 bearing on top of the clip when the device is in use.

After the blades 2| and 22 in a clip I! have becomeworn, theheaded screws I6 are loosened andthe attachment plate I4 is slid upwardly until thehold-down bar I2 is raised somedistance above the clip; i. e. a distance greater than the depending length of the locating flanges 30.

The clip I! is then merelyraised until the flanges 30 escape the notches 3|, and the actuator pin 1 escapes the opening '26, whence the clip is freely withdrawn and discarded.

Anew clip i1 is then disposed on the base 4, with its locating flanges in the notches 3|, and with the actuator pin 1 in the opening26 of the reciprocating blade 2|.

Thereafter, the hold-down bar i2 is lowered into engagement with the clip and manually depressed against the top wear plate I8 to a degree such thatthe blades2| and 22 are maintained in effective working contact between the wear plates [8 and 19, but without undue friction.

The headed screws [6 are then tightened, which locks up the retention head assembly 8, and the device is ready for use.

By reason of the fact that the hold-down bar [2 can be conveniently adjusted, it is easy to vary the pressure exerted on the blades 2| and 22 to maintain them in effective working contact, and which variance of pressure may be desirable to compensate for slight wear, etc.

The wear plates 18 and I!) are formed of a metal which produces a minimum of friction with the blades 21 and 22, the latter preferably being an alloy steel.

Also, if desired, a permanent type of lubricant may be filmed between the relatively moving parts of the clip I! and the blades therein.

It is contemplated that the blade retaining clips I! will be packaged in multiple so that a user may have on hand extra clips for use when the occasion demands: the removal and replaceable clip feature of the device making it most desirable and convenient in use.

Also, by reason of the particular mounting of the blades in the clip, with the ability to alter the pressure on said blades to maintain effective working contact at all times, the device serves most effectively, either as a shaver or hair clipper.

From the foregoing description it will be readily seen that there has been produced such a device as substantially fulfills the objects of the invention, as set forth herein.

While this specification sets forth in detail the present and preferred construction of the device, still in practice such deviations from such detail may be resorted to as do not form a departure from the spirit of the invention, as defined by the appended claims.

Having thus described the invention, the following is claimed as new and useful, and upon which Letters Patent are desired:

1. A blade retaining clip for a power driven shaver or hair clipper having a flat base and a driven oscillating element provided with a driving end exposed above said base, said clip comprising elongated upper and lower wear plates disposed in adjacent but spaced relation, an integral web connecting said plates along one edge in resilient relation, fiat elongated upper and lower blades disposed in face to face engagement between the Wear plates, the cooperating longitudinal working edges of the blades projecting beyond the edges of the wear plates opposite said web, means relatively slidably mounting the blades between the plates and including, with longitudinally disposed notches registering with each other in the ends of the blades, locator flanges on one wear plate projecting into said registering notches and contacting the longitudinal walls thereof; the locator flanges also contacting the ends of the notches in one of said blades and holding said one blade stationary in the clip, the notches in the other blade being elongated relative to said locator flanges to permit said other blade to reciprocate lengthwise relative to said locator flanges; said other blade having an opening intermediate its ends adapted to receive the driving end of said oscillating element in driving relation when the clip is mounted on the base; said one blade having an elongated slot through which the oscillating element projects in clearance and non-driving relationship.

2. A removable blade and clip unit for an electric shaver comprising a pair of flat cooperating blades, a substantially rigid clip embracing and retaining the blades in substantial contact with each other and comprising upper and lower plates terminating short of the front working edges of the blades, and an integral web connecting the plates at the back and preventing normal separation thereof, and elements on one plate projecting through notches in the blades; the notches in one blade being of a width and length such that the side and end edges thereof engage said elements in a manner to prevent lateral and longitudinal displacement of said blade, while the notches in the other blade are of a width thereof relative to the elements such that the longitudinal edges of said notches substantially engage the elements to prevent lateral displacement of said other blade while the distance between the inner end of the notches is greater than the distance between the elements so as to allow of longitudinal reciprocating movement of said other blade relative to the one blade.

3. In a power driven shaver or clipper having a base and an oscillating actuating pin projecting from the base; a removable blade unit comprising a pair of blades disposed in cooperating relation and a substantially rigid clip comprising upper and lower plates between which the blades are confined in relatively reciprocable relation and having a back web integral with said plates, the blades having longitudinal working edges projecting from the clip, elements on one plate engaging the blades to normally retain the latter in the clip against removal in directions endwise of and forwardly out from the clip, and means to removably mount the clip on the base; one blade having an opening to receive the actuating pin in driving relation to reciprocate said one blade.

4. A device, as in claim 3, including means to locate the clip in a, predetermined position on the base, said last named means comprising elements rigid with and depending from the clip at its ends, the base having recesses to receive said elements.

JOHN W. HALTERMAN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,205,576 Stearns Nov. 21, 1916 1,356,866 .Jones et a1. Oct. 26, 1920 1,861,616 Wahl June 7, 1932 2,200,185 Muros May 7, 1940 2,222,106 Knapp Nov. 19, 1940 2,230,462 Kuhnl Feb. 4, 1941 2,253,195 Oster Aug. 19, 1941 2,392,273 Soldani Jan. 1. 1946 

